Lemuroid is a free, open-source, all-in-one emulator frontend for Android (and other platforms like Fire TV, Chromebooks). It's based on the powerful architecture (the same core as RetroArch) but removes 90% of the complexity. No BIOS hunting, no controller mapping nightmares – just pick a ROM and play.
/Emulation/roms/arcade/
archive format. Do not extract the individual files within the zip, as MAME needs the entire set to identify the game. Version Matching lemuroid mame roms